IE37320B1 - Improvements in or relating to 4-wire telecommunications networks - Google Patents

Improvements in or relating to 4-wire telecommunications networks

Info

Publication number
IE37320B1
IE37320B1 IE294/73A IE29473A IE37320B1 IE 37320 B1 IE37320 B1 IE 37320B1 IE 294/73 A IE294/73 A IE 294/73A IE 29473 A IE29473 A IE 29473A IE 37320 B1 IE37320 B1 IE 37320B1
Authority
IE
Ireland
Prior art keywords
connection
switching point
points
testing device
register
Prior art date
Application number
IE294/73A
Other languages
English (en)
Other versions
IE37320L (en
Original Assignee
Siemens Ag Albis
Standard Telephon & Radio Ag
Hasler Ag
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Siemens Ag Albis, Standard Telephon & Radio Ag, Hasler Ag filed Critical Siemens Ag Albis
Publication of IE37320L publication Critical patent/IE37320L/xx
Publication of IE37320B1 publication Critical patent/IE37320B1/xx

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/04—Selecting arrangements for multiplex systems for time-division multiplexing

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Dc Digital Transmission (AREA)
  • Exchange Systems With Centralized Control (AREA)
  • Time-Division Multiplex Systems (AREA)
  • Maintenance And Management Of Digital Transmission (AREA)
IE294/73A 1972-02-29 1973-02-26 Improvements in or relating to 4-wire telecommunications networks IE37320B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH285272A CH541265A (de) 1972-02-29 1972-02-29 Verfahren zur Prüfung von Vierdrahtverbindungen zwischen zwei miteinander zu verbindenden Schaltstellen eines Fernmeldenetzes

Publications (2)

Publication Number Publication Date
IE37320L IE37320L (en) 1973-08-29
IE37320B1 true IE37320B1 (en) 1977-06-22

Family

ID=4243022

Family Applications (1)

Application Number Title Priority Date Filing Date
IE294/73A IE37320B1 (en) 1972-02-29 1973-02-26 Improvements in or relating to 4-wire telecommunications networks

Country Status (14)

Country Link
JP (1) JPS5333203B2 (cs)
AT (1) AT329641B (cs)
BE (1) BE796107A (cs)
CH (1) CH541265A (cs)
DE (1) DE2304923C3 (cs)
ES (1) ES411818A1 (cs)
FR (1) FR2177758B1 (cs)
GB (1) GB1401128A (cs)
IE (1) IE37320B1 (cs)
IL (1) IL41504A (cs)
IT (1) IT984494B (cs)
LU (1) LU67108A1 (cs)
NL (1) NL156881B (cs)
NO (1) NO136814C (cs)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2735341C3 (de) * 1977-08-05 1984-05-10 Standard Elektrik Lorenz Ag, 7000 Stuttgart Anordnung zur Durchgangsprüfung in Fernmeldeanlagen
DE2838816A1 (de) * 1978-09-06 1980-03-20 Tekade Felten & Guilleaume Schleifentest fuer datenuebertragungsstrecken
DE2850376C2 (de) * 1978-11-21 1981-10-01 TE KA DE Felten & Guilleaume Fernmeldeanlagen GmbH, 8500 Nürnberg Verfahren zur Prüfung der Verbindungen eines Fernmeldenetzes
US5066139A (en) * 1989-08-28 1991-11-19 Raynet Corporation Coupler verification test circuit
US5901202A (en) * 1996-10-11 1999-05-04 At&T Corp Method for initiating a telephone call on a remote line

Also Published As

Publication number Publication date
NL7302655A (cs) 1973-08-31
FR2177758A1 (cs) 1973-11-09
IL41504A0 (en) 1973-04-30
NO136814C (no) 1977-11-16
CH541265A (de) 1973-08-31
GB1401128A (en) 1975-07-16
DE2304923B2 (de) 1974-03-07
ES411818A1 (es) 1976-01-01
BE796107A (fr) 1973-06-18
JPS48102508A (cs) 1973-12-22
ATA152673A (de) 1975-08-15
DE2304923A1 (de) 1973-09-20
DE2304923C3 (de) 1974-09-26
IT984494B (it) 1974-11-20
LU67108A1 (cs) 1973-05-03
NL156881B (nl) 1978-05-16
IL41504A (en) 1975-08-31
JPS5333203B2 (cs) 1978-09-13
FR2177758B1 (cs) 1981-07-24
IE37320L (en) 1973-08-29
AT329641B (de) 1976-05-25
NO136814B (no) 1977-08-01

Similar Documents

Publication Publication Date Title
US4685102A (en) Switching system loopback test circuit
IE37320B1 (en) Improvements in or relating to 4-wire telecommunications networks
US4603233A (en) Connection apparatus for the measurement, observation and manipulation of events in a large number of telephone circuits
US4037054A (en) Circuit arrangement for monitoring PCM couplers
EP0661859A2 (en) Testing of a digital communication system
JPS60251751A (ja) デイジタル加入者線試験方式
SU566394A2 (ru) Устройство дл непрерывного контрол качества телефонных каналов дальней св зи
US3949176A (en) Method of and apparatus for all busy detection
US2838610A (en) Electronic telephone system
SU1239888A1 (ru) Способ контрол установлени вход щего соединени в атс
JP2570353B2 (ja) データ回線試験方式
SU1059690A2 (ru) Устройство дл контрол телеграфного тракта
JPS5772456A (en) Automatic verification system for double subscriber jumper
JPS57208758A (en) Test system
SU1197140A1 (ru) Устройство контрол станционной аппаратуры учета стоимости телефонных разговоров
JPS62120153A (ja) 擬似呼発生方式
JPS57136849A (en) Remote subscriber line testing system
JP2621914B2 (ja) 交換機の試験方式
JPS62269458A (ja) 局間デイジタル回線試験装置
JPS6079859A (ja) 被保守中継局トランクの手動試験方式
JPH0294751A (ja) Ｉｓｄｎ加入者線試験方式
JPS573465A (en) Retrieval system for telephone line network crossing state
JPS6337729A (ja) 伝送路の折返し試験制御方式
JPH0583378A (ja) Ｉｓｄｎモデム試験方式
JPS58188954A (ja) 擬似呼試験方式